Cook the rotini pasta according to the package instructions. Once cooked, drain and rinse it under cold water to stop the cooking process.

In a large mixing bowl, combine the cooked pasta, halved cherry tomatoes, diced zucchini, sliced black olives, and crumbled feta cheese.

Pour the Italian dressing over the entire mix and toss gently until everything is well-coated.

Cover and chill in the refrigerator for at least 30 minutes before serving to let the flavors meld.